CASAFINA fine stoneware collections are created by experienced artisans in one of the most environmentally conscious factories in Portugal.AUTENTICITY Handcrafted in Portugal by 1 artisans, our fine stoneware products are unique, durable and timeless. CRAFTSMANSHIP CASAFINA fine stoneware products are hand-finished which provides them unique character. Any irregularities, color variations or small imperfections should not be considered defects, but unique marks of authenticity. Manufactured in a single firing system that saves energy and reduces emissions into the atmosphere;- Reusable and recyclable.Our industrial facilities are modern and environmentally-friendly. Our packaging is 100% plastic-free.. All our stoneware collections are manufactured in Portugal using a single firing system at high-temperature (1180 0C / 2160 0F). This original formula creates a unique ceramic body very resistant to both thermal and mechanical shocks. As a precaution, you should avoid placing the pieces straight from the oven on a cold surface. Do not use it over a direct flame.